Hiya, It's been a while since I've been here. I am starting my pool up and had to drain and fill. It's only a 2300 gallon in ground. The first thing I do is lower the Alk with muratic acid. I thought I used to use pool calculator to tell me how much muratic acid to add. My notes say add two cups and run with the jets pointed to the surface to get the PH back up, and do this twice to get my ALK down to 100 - 120. Did the pool calculator change concerning muratic acid and lowering ALK? Thanks!
